The Incredible Discovery of the Oldest Extinct Penguin Fossil Skull
Today, scientists have uncovered the oldest known extinct penguin fossil - a skull estimated to be around 61 million years old. This discovery, made in New Zealand, sheds light on the evolution of penguins and provides evidence of how these birds adapted over time. The fossil is believed to have belonged to a species of penguin that was twice the size of the emperor penguin, the largest penguin species today. This indicates that penguins were larger in the past, and have been shrinking in size over time.
source: Phys.org